Yes, you can add other orders on your Pre-Order that has not been shipped yet.
You need to write the comment and Original Order No. such as "Add this order to my Pre-Order #No.------" on your new orders.And you need to pay double shipping cost temporarily.
We will keep them until Pre-Order released and ship them together and refuhnd the excess shipping cost.
About combined shipping cost in this case, We will refund only the amount actually exceeding the real cost.Please understand.
Pre-Order: shipping : $8
Order 2 : shipping : $10
Totally you paid $18 temporarily
When we ship out, we refund as following,
$18(you paid)- $12 ( Real Cost ) = $6 will be refunded.
However, even if we combine your order, the shipping cost we actually pay may be more than what you paid.
order #1 shipping $16
order #2 shipping $16
You want to combine them, you paid $16x2 =$32 totally.
Espeically it happens you buy heavy items. In this case, we can refund any. Understand.
This means that even if you combine two or more different orders, the shipping costs may not be refunded.
The best way for you to ensure that you get the best shipping rates is to buy all your items at the same time.
Only then will you save on our shipping charges.